scholarly journals Off-axis current drive with very high harmonic fast waves for CFETR

2020 ◽  
Author(s):  
Y. Q. Yang ◽  
X. J. Zhang ◽  
Y. P. Zhao ◽  
C. M. Qin ◽  
Y. Z. Mao ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Waves ◽  
Very High

scholarly journals Application of very high harmonic fast waves for off-axis current drive in the DIII-D and FNSF-AT tokamaks

2014 ◽  
Vol 54 (8) ◽  
pp. 083024 ◽  
Author(s):  
R. Prater ◽  
C.P. Moeller ◽  
R.I. Pinsker ◽  
M. Porkolab ◽  
O. Meneghini ◽  
...  
Keyword(s):  
High Harmonic ◽  
Current Drive ◽  
Fast Waves ◽  
Very High

Resonant wave-filament interactions as a loss mechanism for HHFW heating and current drive

2021 ◽  
Author(s):  
Wouter Tierens ◽  
James R Myra ◽  
Roberto Bilato ◽  
Laurent Colas
Keyword(s):  
Surface Wave ◽  
Surface Waves ◽  
High Harmonic ◽  
Current Drive ◽  
Fast Wave ◽  
Power Losses ◽  
Loss Mechanism ◽  
Resonant Wave ◽  
Plasma Filaments ◽  
Analytic Expression

Abstract Perkins et al. PRL 2012 [1] reported unexpected power losses during High Harmonic Fast Wave (HHFW) heating and current drive in NSTX. Recently, Tierens et al [2] proposed that these losses may be attributable to surface waves on field-aligned plasma filaments, which carry power along the filaments, to be lost at the endpoints where the filaments intersect the limiters. In this work, we show that there is indeed a resonant loss mechanism associated with the excitation of these surface waves, and derive an analytic expression for the power lost to surface wave modes at each filament.

scholarly journals Profiles of fast ions that are accelerated by high harmonic fast waves in the National Spherical Torus Experiment

2010 ◽  
Vol 52 (2) ◽  
pp. 025006 ◽  
Author(s):  
D Liu ◽  
W W Heidbrink ◽  
M Podestà ◽  
R E Bell ◽  
E D Fredrickson ◽  
...  
Keyword(s):  
High Harmonic ◽  
Spherical Torus ◽  
Fast Ions ◽  
Fast Waves

Current drive with combined electron cyclotron wave and high harmonic fast wave in tokamak plasmas

2016 ◽  
Vol 23 (12) ◽  
pp. 122504 ◽  
Author(s):  
J. C. Li ◽  
X. Y. Gong ◽  
J. Q. Dong ◽  
J. Wang ◽  
N. Zhang ◽  
...  
Keyword(s):  
High Harmonic ◽  
Electron Cyclotron ◽  
Current Drive ◽  
Fast Wave ◽  
Tokamak Plasmas ◽  
Electron Cyclotron Wave

scholarly journals Efficiency of current drive by fast waves

1985 ◽  
Vol 28 (1) ◽  
pp. 116-126 ◽  
Author(s):  
Charles F. F. Karney ◽  
Nathaniel J. Fisch
Keyword(s):  
Current Drive ◽  
Fast Waves
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